Advice

Don't panic

Your tech problems solved

I use a Netgear wireless router, as does my neighbour. When we’re online at
the same time our speeds are hugely compromised. We have set our routers to
channels 1 and 11 to try to stop interference, but to no effect. Any other
ideas? TM, Colby, Isle of Man

Wireless routers can broadcast on a number of frequencies around the
2.4 gigahertz (GHz) range, with channel 1 using the lowest and channel 11
(or, on some routers, 14) the highest. So you’ve taken a smart step in
adjusting the default channels. However, it’s not necessarily a single
neighbour who is causing you problems, but the cumulative effect of all the
wi-fi users in your locale who are crowding the networks and signals.

There are analytical programs that can help. If you have an Android phone, try
Wifi Analyzer (tinyurl.com/7nuboya); if you use a Windows computer, give
Inssider a go (tinyurl.com/4jkptqp). Both